Cn eating fast and being anxious whilst eating cause gerd in young adult if been doing for 3 years? get chest pain/stomach pain bending over after eat

Yes, although it: might not be GERD, just burping (get an MD to look at this). Sounds like anxiety rules your eating habits, so deal with the anxiety. Eating slowly, chewing thoroughly and drinking only a little water with the food will aid digestion, minimize gaseous backlash and stomach/intestinal pain. Enjoy your food as much as possible and see someone about that anxiety.